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  1. Trailer Brakes
  2. etrailer
  3. Electric Drum Brakes
  4. 8000 lbs Axle
  5. 12-1/4 x 3-3/8 Inch Drum
  6. 16 Inch Wheel
  7. 16-1/2 Inch Wheel
  8. 17 Inch Wheel
  9. 17-1/2 Inch Wheel
etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K
etrailer

etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K

Part Number: AKEBRK-8
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The automotive-grade pads on these automatically adjusting brakes offer lasting effectiveness. 12-1/4" x 3-3/8" Assemblies have rust-resistant, e-coated backing plates and dust shields to protect from debris. Fits 15" or larger wheels. Great Prices for the best trailer brakes from etrailer. etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K part number AKEBRK-8 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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etrailer by AxleTek Trailer Brakes - AKEBRK-8

  • Electric Drum Brakes
  • 8000 lbs Axle
  • 12-1/4 x 3-3/8 Inch Drum
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Standard Grade
  • Self Adjust
  • etrailer

The automotive-grade pads on these automatically adjusting brakes offer lasting effectiveness. 12-1/4" x 3-3/8" Assemblies have rust-resistant, e-coated backing plates and dust shields to protect from debris. Fits 15" or larger wheels.


Features:

  • Self-adjusting brakes let you maintain optimal braking power at all times
    • Ensures reliable contact between the brake shoes and drums
    • Prevents uneven wear on brake shoes
    • Allows for the perfect setting thanks to the fine-tooth star gear
  • Easier to install and gives you more control than hydraulic brakes
    • Requires only an electric brake controller (sold separately) - no actuator or hydraulic lines needed
  • Automotive-grade brake pads offer superior quality, smooth operation, and excellent braking torque
    • Fully bonded to shoes for more consistent braking compared to riveted pads
    • Tapered edges on pads minimize stuttering and brake lockup
  • Protective dust shields keep internal components free from dirt, grime, and road debris
    • E-coat on backing plates fends off rust
    • Adjuster plugs (included) cover access holes
  • Left-hand (driver's-side) and right-hand (passenger's-side) brake assemblies included
    • Mounting bolts and hardware (BRKH122508) sold separately
  • QAI , CSA , and SAE-N certifications ensure quality


Specs:

  • Application: most standard hub-and-drum assemblies, including etrailer, Dexter, and Lippert (LCI)
  • Dimensions: 12-1/4" diameter x 3-3/8" wide
  • Mounting flange bolt pattern: 4 bolt
  • Wheel size: 15" or larger
  • Axle rating: 8,000 lbs
  • Limited 1-year warranty


Quick Tip: There's really not a whole lot to getting new drum brakes. If you've confirmed that all of the specs listed above line up with what you need for your trailer, you can be pretty sure these will work for you.


Automotive-Grade Brake Pads

The pads on these trailer brakes are made of the same friction material that you might find on a car's drum brakes. In fact, the material is SAE-N certified. So, not only does it provide high-performance braking, but it's environmentally friendly, too! With these brakes, your trailer will be good to go on any road throughout the United States and Canada.


The superior quality of these pads is also due to the fact that they're bonded to the shoes, not just nailed down. Riveted brake pads will always give you a screeching reminder to replace your brake shoes. That's because the rivets will scrape against your drum as the friction material wears down. You won't have that noisy problem with bonded brake pads. You'll also get a little more friction pad contact because there aren't any cutouts for rivets. And more friction means more stopping power.


A closeup shot of an etrailer drum brake shows a tapered brake pad.

These pads are also tapered, which should help to prevent any broken, crumbly bits of material from rotating inside the drum as the pads wear over time. Brakes without these tapers are more likely to create a jarring braking experience that could cause the brakes to stutter and lock up.


Self-Adjusting Brakes Don't Require Routine Maintenance

With typical electric brake assemblies, you need to manually adjust them every now and then to make sure you're getting the shortest stopping distances every time you tow.


A trailer drum brake with a red callout shows the location of a tension cable and pulley on a self-adjusting trailer brake.

With self-adjusting brakes, though, you'll always have peak stopping power - simple as that! As the brake pads wear over time, a tensioning cable will automatically keep the pads in alignment so they'll consistently make contact with your drum when you brake. You won't have to do tedious manual adjustments anymore.


Thoroughly Tested for Safety

A lot of resources have been invested to ensure that these brakes meet the requirements for certification set by the QAI and CSA . Basically, these certifications tell you that these trailer brakes are well built and safe for use on the road. They've been tested for braking performance under real-world conditions to provide the most realistic scenario for the everyday tower.


How to Break In New Brakes

Once you get these brakes installed, you'll need to break them in. First, find a long stretch of road or a big, empty parking lot. Once you're there, set your brake controller to its maximum setting and get moving. Speed up to about 40 mph and brake to slow to about 20 mph. Repeat this 15-30 times. The goal is to get the brake shoes and magnet properly seated into your drum. You'll know you've done that when it feels less jerky (and more consistent) each time you apply the brakes.


Note: The brakes will be very hot after doing this, so after every 10 stops you'll want to wait about 10 minutes to let the brakes cool off before continuing. If you don't, you might cook and crack the pad material.



B1208E-11 etrailer by AxleTek Electric Brake Assembly - LH - Driver Side - 12-1/4" x 3-3/8" - Self-Adjusting - 8,000 lbs - Dust Shield

B1208E-12 etrailer by AxleTek Electric Brake Assembly - RH - Passenger Side - 12-1/4" x 3-3/8" - Self-Adjusting - 8,000 lbs - Dust Shield





Customer Satisfaction Score:


Customer Reviews

etrailer Electric Trailer Brakes w/ Dust Shields - Self-Adjusting - 12-1/4" - Left/Right - 8K - AKEBRK-8

Average Customer Rating:  4.8 out of 5 stars   (183 Customer Reviews)

The automotive-grade pads on these automatically adjusting brakes offer lasting effectiveness. 12-1/4" x 3-3/8" Assemblies have rust-resistant, e-coated backing plates and dust shields to protect from debris. Fits 15" or larger wheels.

by:

I've had them on the trailer for about one year now, still work like brand new. Good quality, they were easy to install. The self adjusting feature is definitely a bonus. Highly recommend.



by:

Easy install as they were an exact replacement. Glad to have found self adjusting brakes as it was difficult crawling under my 5th wheel, raising a wheel off the ground and performing the adjustment procedure. It took several hundred miles for these to burnish in completely. Once they did, my brake controller setting was reduced from 100% to 40%. Our 7 week road trip took us through Grand Tetons, Yellowstone, mountains of Idaho, Washington and Oregon. The brakes were great the entire trip.



by:

I am usually not one to buy aftermarket parts, I always prefer “Made in USA”. However these brake assemblies were better then expected and fit perfectly. I’m yet to see the wear factor but they look good.



by:

Again, parts themselves were terrific. No issues. Packaging was horrible. 4 complete brakes with backing plates were shipped in one cardboard box. No dividers between the parts. They had to have been banging together during shipment. Box was ripped. Other parts in the box could easily (and may have) fallen out. Luckily, everything was intact.



by:

Unfortunately after about 4 month of use brake magnet arm was broken half and fails all brakes on the trailer

Katrina D. profile picture
Etrailer Expert

Katrina D.

8/1/2023

I am sorry to hear this. This item has a 1-year warranty, so lets hurry and get you over to our customer service department for them to see what they can do for you.



by:

Product was exactly as advertised. The price was great and the brakes were installed and ready to go!



by:

I had bought from etrailer before and was satisfied so since I was in the market for brakes for one of my older trailers I called them. The employee assisted me in the selection of the parts I needed. The order was placed and I was given a delivery date. Surprise, the order was delivered a few days ahead of that. I am pleased.



by:

Exact replacement



by:

the early arrival of the brakes was a surprise.Thats a +, the - was the packaging was a dissapointment. to put 2 brake kits in a 3' long box with several crumpled pieces of paper that allows the brakes to crash into each other during shipping can cause damage to the parts. either strap them in or use foam to secure them. over all I am satisified with the product. I am replacing the brakes on my 38rl redwood camper.



by:

Had exactly what we needed. Our brakes are not your ordinary 7 hole ours are 4 holes and wider. Etrailer was the only company that carried them and had them in stock. Ordered, shipped, and received within 2 days!



by:

great turnaround. Ordered on Saturday and received Monday. Joshua was great in confirming the correct size.



by:

only complaint was that one (2) sets ordered one of the backing plates was wrong - so have to swap parts over to old backing plate but everything worked as should -

Jenny N. profile picture
Etrailer Expert

Jenny N.

10/7/2022

It sounds like one of the brake assemblies shipped was incorrect. I will have customer service reach out.



by:

Installed right side this morning. (have one for a spare) Perfect fit! Thank you for a wonderful product!



by:

First time ordering from etrailer and I will definitely be ordering from them again. My experience with the sales person was pleasant and informative. My parts arrived on time and fit perfectly.



by:

Brakes work as they should on my 2004 Elite horse trailer. Easy to install. The break in period is important as when I first installed braking was not good, but after break in period they work excellent.



by:

Way cheaper than original Dexter and came w/ a shield. It's looks exactly the same and performs like Dexter, but you save a lot money. My friend saw these on my trailer and couldn't believe how much I paid. So, he had me order 4 set of them for him. I just torch off old mounting bolts and the brake assembly fit perfectly. My trailer is used mon-fri for work. Now, I have working trailer brakes.



by:

Great customer service!!!



by:

Product was great and box was delivered intact. Quick delivery. A couple of the brakes were bouncing around in the package and some reassembly was required but all the pieces were there and no parts were damaged.



by:

GREAT PRICE AND AWESOME STOPPING POWER! USED THESE UNITS TO CONVERT FROM OLD HYD BRAKES TO ELECTRIC, I PULL OVERSIZE WITH A 28,000 GVW GOOSNECK AND THESE BRAKES SLOW IT DOWN NICE!



by:

First experience with etrailer. Do not recommend. 2 of 3 boxes damaged. Ok its heavy parts but must be take car of the boxes and packed

Jenny N. profile picture
Etrailer Expert

Jenny N.

6/23/2022

I am sorry to hear that the first order with us arrived damaged. Our shipping department does its best to package orders so they arrive in good condition and I will share this with the shipping department. I will also have our customer service team reach out to you to assist.



by:

Great service..prompt delivery..nicely packaged.



by:

The parts fit like the originals. Save lots of time in ordering the parts from etrailer.

Tim profile picture

Tim

12/3/2020

The brakes work like new. no problems.



by:

Great service and fast shipping. Parts were spot on! Will be doing business again. Thanks for the Excellent Service.



by:

Parts where exact fit for dexter 8k axles,great value and appears to be well a manufactured assembly. Order fulfillment customer service was excellent!Items was shipped proto and well packaged. This was first time doing business with etrailer, definitely will be back!



by:

I replaced my brakes on our fifth wheel with these, and they worked out great fit perfect and perform well


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See what our Experts say about this etrailer Trailer Brakes

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    The measurements for the mounting holes on the # AKEBRK-8 are 3-5/8" across left to right on center and 3-7/16" top to bottom on center. The diameter of the pilot hole is 3-3/4", and the overall dimensions are 12-1/4" diameter x 3-3/8" wide. The axle rating for these trailer brakes is 8,000 lbs. When picking out the correct brake assemblies for your trailer you want to measure the inner diameter of your hub/drums and the depth of the drums. This information will allow you to find the...
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  • What is the Four Bolt Brake Mounting Flange for 8,000 Lb Axles
    The four bolt brake mounting flange for 8,000 lb trailer axles is going to be more or less an industry standard. This industry standard is 3-5/8" across left to right on center and 3-7/16" top to bottom on center. This could very well vary 1/16" depending on where you measure but rest assure if you have an 8,000 lb trailer axle with four bolt brake mounting flange the Electric Trailer Brake with Dust Shield part # AKEBRK-8L should be the correct braking assembly for you.
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    The value 8k etrailer brake assembly set part # AKEBRK-8 and the premium Dexter 8k set part # 23-434-435 both offer the same stopping power. The Dexter brand is widely considered to be the best brand for trailer braking components and they do work really well but the etrailer brand is not low quality by any means and with the price difference as large as it is I would say it's the easy winner.
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  • Replacement 12-1/4 Inch x 3-3/8 Inch Braking Assembly with Four Bolt Brake Mounting Flange
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  • Choosing the Correct Replacement Electric Brakes for 8,000 lb Axle
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  • Electric Trailer Brakes For 12-1/4 Inch Dexter 8-285 Hub & Drum
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  • How to Select Replacement Electric Drum Brakes for Tandem Axle Gooseneck Trailer
    Replacement electric drum brakes needs to be selected based on the axle weight rating to ensure they have the necessary stopping power. We do offer electric drum brakes in your specified size, 12-1/4 x 3-3/8-inches, and this size comes in ratings for 8K, 9K and 10K axles. All are displayed on the linked page. Your axles should have a sticker or plate that indicates their weight rating. You'll also want to note the brake mounting bolt pattern to make sure you choose new brakes that match....
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  • Upgrading From 7K to 8K Electric Brake Assemblies on Trailer for Increased Braking Power
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  • Replacement Brakes for Gatormade Gooseneck Trailer with 8K Lippert Axle
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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C
Employee Ryan F
Written by:
Ryan F

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